JP2019043572A - Bag body - Google Patents

Abstract

To provide a bag body for storing food, etc. which reduces such an occasion as much as possible that a person touches it with a hand and which enables effective packing work by reducing the labor of the packing work as much as possible.SOLUTION: A bag body has a bottom part consisting of a front face sheet and a back face sheet. Side parts of the front and back face sheets at a lower part of the bag body are bonded, and both sides of an upper part of the bag body are not bonded. The upper part where both sides of the front face sheet are not bonded has a folded part folded in a mountain shape in a front face direction of the bag body.SELECTED DRAWING: Figure 1

Description

  The present invention is a structure of a bag, and is a bag having a structure capable of wide-opening the opening of the bag and being capable of storing a storage item to be stored behind the bag.

Generally used bags are sealed in a sealed state by fusing the bottom and side parts, but in a bag that has an opening and seals an object to be stored from the opening. It can be stored.
Therefore, it is necessary to put in the things to be stored from this opening, and in order to make it easy to store, a wide bag can be used which can widen the opening.
Furthermore, as a structure for maintaining the opening of the opening, for example, there is a configuration shown in Japanese Patent Application Laid-Open No. 10-203541 (Patent Document 1).

This is a configuration that can maintain the opening of the opening.
Moreover, the structure of the bag body of the square bottom bag of Unexamined-Japanese-Patent No. 2003-300535 (patent document 2) is also formed as a leading example which formed the folding part in the bottom part and the side part, and was able to take large internal volume of a bag body. Exists.
In particular, in the case of a bag having a sheet-like front and back surface, a wide body is required to facilitate storage of the items to be stored and to facilitate removal thereof, and as shown in Patent Document 2, It is one of the most effective means to form a folded portion in the side portion to form a wide bag.

JP 10-203541 Japanese Patent Application Laid-Open No. 2003-300535

As described above, when the items to be stored in the bag are stored, it is necessary to widen the opening of the bag in consideration of the ease of storage.
For this purpose, it is most easy to obtain a wide opening of the cylindrical body of the bag body.
On the other hand, however, the opening of the bag also has a width that is difficult to store due to its limitation at the time of storage.

Especially in consideration of putting in the opening of the bag at the time of storing, it is necessary to hold the thing to be stored firmly by hand, and in particular, when the size of the thing to be stored becomes comparable to the opening. In such a case, it is necessary to strongly hold the stored items at the stage of holding by hand.
In particular, in the case of foods and the like, putting emphasis on them can not only damage the foods but also lead to the deterioration of the quality.

Furthermore, since it becomes a premise to touch with a hand, it can not be avoided by all means using gloves etc.
Even in this case, it is inevitable that the food may be damaged from being touched or that the quality thereof may be degraded.
Furthermore, in such a state, it is necessary to work carefully, and it takes too much time for bagging work such as food.
Therefore, it is desirable to provide a bag that can be easily stored in the bag while minimizing the possibility of touching the bag in which food etc. is to be stored.

In order to solve such a problem, the invention according to claim 1 is provided.
First, the invention according to claim 1 is a bag body having a bottom portion consisting of a top sheet and a back sheet, and the bag body is fused at the side portions of the front and back sheets, and melting of the side portions Wearing is at least the lower part of the bag body, and both sides of the upper part of the bag are not fused, and the upper part where both sides of the top sheet are not fused is mountain-folded in the surface direction of the bag. It is a bag body having a folded back portion which can be solved by the present invention.

Furthermore, the invention according to claim 2 may be a bag body in which the side sides of the front and back sheet are welded or adhered instead of the fusion at the side of the front and back sheet.
Furthermore, as in the invention according to claim 3, an extension sheet may be provided on the top of the back sheet, and the extension sheet may be a bag fused to the front side of the back sheet.

Alternatively, instead of the fusion to the front side of the back sheet of the extension sheet as in the invention according to claim 4, a bag may be welded or adhered to the front side of the back sheet of the extension sheet.
In addition to this, as in the invention according to claim 5, a bag having a reinforcing sheet on the back side of the back sheet may be used.

  Since it comprised as mentioned above, first, the opening part of a bag can be located between a surface sheet and a back surface sheet by the invention which concerns on Claim 1, and a surface sheet is put by putting what should be put in a bag on a bag. When the bag body is lifted by grasping the folded back portion and the back sheet, it is possible to provide a bag body in which things to be contained in the bag body can be easily put in the bag body by its own weight.

This means that when the bag is lifted, it is possible to provide a bag in which an object placed on the bag can be placed in the bag.
By this, the efficiency of the bagging operation to the bag body can be improved, and the bagging operation can be easily performed.
Furthermore, it is possible to easily put something in the bag into the bag by lifting the bag by grasping the folded back portion and back sheet of the bag, and an opportunity to touch the thing as much as possible. Can be reduced.
Therefore, it can be handled hygienically and safely, and for example, perishable goods etc. can be hygienically bagged.

Next, according to the second aspect of the present invention, the side of the bag is not limited to the close contact state by fusion, but may be welding or adhesion, as long as the side of the bag is formed. Good.
In particular, in order to prevent leakage of moisture such as fresh goods including moisture to the outside, it is best to use a sealed fusion bonding, but even if welding is used or adhesion is used, careless moisture Such a configuration may be adopted because leakage of the

Moreover, the method of bag making can be diversified.
The extension sheet can be extended to the back sheet by the invention according to claim 3, and a bag body that can be held more easily when putting things to be stored in the bag body can be formed, and the efficiency of the bagging operation can be improved. It will be possible.
In particular, since the extension sheet is fused to the front side of the back sheet, the extension sheet is positioned more in the inside direction of the bag than the back sheet.
This can make it easier for the object to enter the bottom direction of the bag when the bag is lifted when the thing to be stored is placed on the bag.

Therefore, the efficiency of the bagging operation can be maintained higher.
Next, according to the invention of claim 4, it is possible to adopt various bag making methods when forming the extension sheet, and it is possible to obtain the efficiency and diversity of bag making.

Furthermore, according to the invention of claim 5, the reinforcing sheet can be provided on the back side of the back sheet, and the strength of the back sheet when lifting the bag at the time of bagging can be further enhanced.
Therefore, for example, when the bag is lifted with the item to be stored on the bag and put in the bag, it is possible to prevent the back sheet from being inadvertently bent by the weight of the item. When entering the inside of the bag along the back sheet or the like by its own weight inside the bag, it can be made easier to enter.
As described above, it becomes possible to provide a hygienic bag body while maintaining high bagging efficiency, in addition to being extremely convenient.

A figure showing an example of a bag concerning the present invention A-A end view of an example of the bag according to the present invention shown in FIG. The figure which shows an example of the state which held the bag body which concerns on this invention shown in FIG. 1 in a hand. The figure which shows an example of the state which mounted the thing which should be stored in the bag which concerns on this invention shown in FIG. The figure which shows an example of the state which held the bag body which concerns on this invention shown in FIG. 4 in a hand. The figure which shows another example of the bag body which concerns on this invention.

The bag 1 shown in FIG. 1 is a view showing an example of a bag which can widen the opening of the bag 1 when storing a storage item to be stored and can easily store the storage item inside the bag 1. .
First, the bottom of the bag 1 is a square bottom, and when the contents are stored, the bottom of the bag 1 is wide and can accommodate many stored items.
The bag 1 concerned consists of front and back, and the lower part of the central part of the bag 1 is fused on both sides to form the side 4 and both sides in the upper direction near the opening of the bag Are not fused and are configured as respective openings.

The top sheet 2 of the bag body is folded in the upper part into a mountain fold and folded back in the direction of the surface of the bag body 1.
Further, in the configuration of this figure, the top sheet 2 and the back sheet 3 constituting the front and back of the mountain-folded folded portion 20 of the top sheet 2 are fused to the side 4.
The back sheet 3 further has the extension sheet 30 fused to the sheet, and the upper part of the back sheet 3 is extended by the extension sheet 30.

As a result, even when the mountain-folded portion of the folded portion 20 of the top sheet 2 is stretched, the back sheet 3 and the extension sheet 30 become longer sheets.
Further, the extension sheet 30 is fused on the front side of the sheet surface of the back sheet 3, that is, on the front side of the inner surface of the bag, and when the tip portion of the extension sheet 30 is clogged To be bent.
That is, since the extension sheet 30 is fused to the inside of the bag body 1, when the extension sheet 30 is held, it is inclined in the inward direction of the bag body 1.

An adhesive portion 31 is provided in the direction of the extended end of the extension sheet 30, and the adhesive portion 31 is covered with a release paper 5.
The folding portion 20 of the mountain fold of the front sheet 2 can be grasped in the bag 1 configured as described above.
When the folded portion 20 is held by one hand and the extension sheet 30 is held by the other hand, the opening of the bag 1 is positioned between them.
Therefore, it is possible to easily hold the top sheet 2 and the back sheet 3 constituting the opening of the bag 1 and to easily insert the articles to be stored inside the bag 1 from the opening of the bag 1 generated between the two. be able to.

FIG. 2 is an end view on line A-A of the bag shown in FIG.
The main bag is composed of the top sheet 2 and the back sheet 3, and both sheets 2 and 3 are fused at the side 4 but both sides of the tip of the sheet in the upper direction are separated and fused Not.
On the other hand, the front and back sheets 2 and 3 in the lower direction are fused at the side portion 4 to constitute the side surface of the bag 1.
The front sheet 2 is folded in a mountain fold to form a folded portion 20, and the tip thereof is bent in the surface direction of the bag 1.

Further, the extension sheet 30 is further fused in the front end direction of the upper part of the back sheet 3, but particularly this fusion is fused on the front side of the back sheet 3, that is, the inner surface of the bag.
Further, an adhesive portion 31 is provided in the direction of the end of the extension sheet 30, and the release paper 5 is further adhered.
After the items to be stored in the bag 1 are stored, the release paper 5 is peeled off to expose the adhesive portion 31, and then the opening of the bag 1 is sealed.

FIG. 3 shows an example of a state in which the respective ends of the folded portion 20 of the top sheet 2 and the extension sheet 30 of the back sheet 3 of the bag 1 according to the present invention are gripped with both hands.
By thus opening the bag body 1 slightly by grasping the respective ends with both hands and opening the bag body 1 slightly, the opening of the bag body is easily opened widely.
By configuring in this manner, it is possible to easily store the items to be stored in the bag 1.

In particular, since the extension sheet 30 fused to the back sheet 3 is fused on the front side of the back sheet 3 and in the inside direction of the bag, the extension sheet 30 holds the stored items on the extension sheet 30. In this case, it is possible to form an inclined surface that is easy to store in the bag 1.
As described above, the bag body 1 shown in the present invention not only constitutes the extremely easy-to-hold bag body 1, but also allows the items to be stored to be easily accommodated in the bag body 1.

FIG. 4 shows an example of a state in which the storage items P to be stored on the bag according to the present invention are placed on the extension sheet 30 of the bag 1.
This is an example of a procedure that is easy to store the stored item P in the bag 1.
Although it is possible to put in the article P to be stored in a state where it is particularly held, for example, the article P to be stored is placed at an arbitrary position of the bag 1, and the front and back sheets 2 of the bag 1 are held with both hands, It is possible to easily put the object P to be stored in the bag 1 by grasping and lifting the respective end portions 3.

In this case, in particular, if the object P to be stored is placed on the back sheet 3 in the vicinity of the opening of the bag 1, the top sheet 2 and the back sheet 3 can be simply grasped and lifted by the both ends of the bag 1. The object P to be stored can be dropped into the bag 1 from the opening formed between the two.
Therefore, it is possible to put the object P to be stored in the bag 1 by proceeding from the state of this figure to the configuration shown in FIG. 5 shown next.

FIG. 5 shows an example of a state in which the bag body 1 is lifted from the state of FIG. 4 with the folded portion 20 of the front sheet 2 of the bag body 1 and the extension sheet 30 of the back sheet 3 held by each hand. FIG.
As shown to this figure, it is an example of the state in which thing P which should be stored can be easily penetrated into bag body 1 inside between the sheets 2 and 3 of front and back.

That is, by holding the folded portion 20 of the top sheet 2 in hand and holding the extension sheet 30 of the back sheet 3 in hand, the opening of the bag 1 is opened.
Furthermore, by holding the extension sheet 30 in hand, the extension sheet 30 can be inclined toward the inside of the bag 1 so that the articles P to be stored on the bag 1 can be easily fed into the inside of the bag 1 easily.
In particular, when the bag body 1 is lifted by holding the sheets 2 and 3 on the front and back sides of the bag body 1, it can be easily stored in the bag body 1 by the weight of the object P to be stored.

With this configuration, for example, when the object P to be stored in the bag 1 is stored, the stored item P can be easily sent into the bag 1 without touching the hand by putting it on the bag 1 according to the present invention. be able to.
For example, when a fresh product is placed on a plate, placed on the bag 1, and the bag is lifted by the folded portion 20 of the front sheet 2 of the bag 1 and the extension sheet 30 of the back sheet 3, It is possible to put things to be stored in the body 1.

With respect to the perishables originally placed on the plate, only perishables can be easily put in the bag 1 by placing only the perishables other than the plate on the bag 1.
In this way, it is possible to easily store the items P to be stored in the bag 1 without touching the perishables at all.
Alternatively, place the bag body 1 according to the present invention on a scale, place meat etc. on the bag body 1 using gloves etc. and measure weight, and simply put the meat etc. by lifting the bag body 1 as it is Can be enclosed.

Therefore, it can be easily enclosed in the bag using the weight of the meat.
Furthermore, this will minimize the chance of touching the meat etc. as much as possible.
Therefore, the bagging operation can be performed extremely hygienically.
Furthermore, by placing the object P to be stored on the bag body 1 in this way, the bag can be enclosed in the bag body 1 simply and in a short time, and hence the efficiency of the bagging operation can be improved.

As described above, it is possible to carry out hygienic and efficient sealing of perishables and the like in bags and the like.
Although this drawing clearly shows that the release paper 5 and the adhesive portion 31 are provided, it may have another sealing means and sealing means instead of such a form, and other sealing devices may be used. Or may be rolled up and packaged by another packaging means.

FIG. 6 is a view showing an example in which the back sheet 3 is formed slightly longer without having the extension sheet 30. As shown in FIG.
At least in the lower direction of the top sheet 2 and the back sheet 3, there are side portions 4 fused on both sides, but the top direction of the top sheet 2 is not fused and the mountain folds on the front side of the top sheet 2 And has a folded portion 20.

An object P to be stored is placed on the back sheet in the upper direction of the back sheet 3 with respect to such a bag body 1 with respect to the folds 20 of the mountain fold of the top sheet which is the center part thereof. By grasping and lifting each of 20 and the front end of the back sheet 3, it is possible to easily send in the object P to be stored in the bag.
Therefore, such a configuration may be used.

Although the main bag body 1 is a square bottom body, the present invention is not limited to this and may be a bag body 1 having any bottom portion configuration.
Also, the lengths of the top sheet 2 and the back sheet 3 may of course be the same or substantially the same.
Even in this configuration, the object P to be stored in the bag 1 can be put in by holding the both ends of the front and back sheets 2 and 3 of the bag 1 sufficiently.

Further, although the present configuration clearly shows the state in which the side portions 4 are formed by heat fusion on both sides, the present invention is not limited to this, and even if it is configured by heat fusion cutting, the structure fused or welded by ultrasonic sealing or the like The bag may be formed by various sealing processes.
Alternatively, the bag may be configured by adhesion using an adhesive or the like.
Furthermore, although the present bag body is configured by clearly showing the front and back sheets 2 and 3, these sheets may be thermoplastic sheets, even those using various resin sheets, or sheets composed of paper materials, etc. It may be used.

The film is naturally included in the sheet.
Further, in addition to the configuration shown in the drawing, the back sheet 3 may further have a reinforcing sheet on the back side of the back sheet 3.
For example, the reinforcing sheet may be provided from the lower part where the front and back sheets 2 and 3 are fused at the both sides and further to the upper part of the back sheet.
Alternatively, the reinforcing sheet may be overlaid on the back sheet 3.

It is desirable to have from the front and back of the position of the opening of the bag 1 at the time of mounting the thing P which should be stored at least, and the upper direction of the back surface sheet 3.
As a result, the strength of the back sheet 3 in the vicinity of the opening of the bag 1 of the back sheet 3 is enhanced, and the feed angle of the stored item P into the bag 1 is formed by the sheet when the back sheet 3 is held by hand. The angle of inclination can be kept constant.

For example, depending on the item P to be stored, if this portion is bent, it may be difficult to insert, but by enhancing the strength of the back sheet 3, the stored items can be easily fed in the back direction which is the inside of the storage portion of the bag 1 .
Therefore, when the bag 1 is held by hand, it is possible to easily drop the thing P to be stored into the bag 1 easily by its own weight.

Reference Signs List 1 bag body 2 front sheet 20 folded portion 3 back sheet 30 extension sheet 31 adhesive portion 4 side side portion 5 release paper P

Claims (5)

A bag body 1 having a bottom portion composed of a front sheet 2 and a back sheet 3 which is fused at the side portions 4 of the front and back sheets 2, 3;
The fusion of the side 4 is at least the lower part of the bag 1,
Both sides of the upper part of the bag 1 are not fused, and
A bag body characterized by having a folded back portion 20 folded in a mountain fold in the surface direction of the bag body, in the upper part where both side portions of the surface sheet 2 are not fused. 2. The bag according to claim 1, wherein the side portions of the front and back sheets 2, 3 are welded or adhered in place of the fusion at the side portions 4 of the front and back sheets 2, 3. An extension sheet 30 is provided at the upper part of the back sheet 3;
The bag according to any one of claims 1 and 2, wherein the extension sheet 30 is fused to the front side of the back sheet 3. The bag according to claim 3, characterized in that instead of the fusion to the front side of the back sheet 3 of the extension sheet 30, welding or adhesion is made to the front side of the back sheet 3 of the extension sheet 30. The bag according to any one of claims 1 and 2, further comprising a reinforcing sheet on the back side of the back sheet 3.

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